Washing machine of non-contact power transmission structure

By designing a contactless power transmission structure, the washing machine drum rotates synchronously using permanent magnets, solving the problems of water and electricity leakage caused by the drive shaft, improving the washing machine's sealing and cleaning performance, and reducing costs.

CN223893075UActive Publication Date: 2026-02-10JIANGSU YOUWU TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520253557.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2026-02-10
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

The existing washing machine motor rotation power transmission is achieved through a drive shaft, which poses risks of water leakage and electric leakage, and is also costly.

Method used

It adopts a contactless power transmission structure, which uses the attraction of upper and lower permanent magnets to achieve synchronous rotation of the inner drum of the washing machine. The transmission mechanism and isolation fixing components ensure sealing and convenient assembly.

Benefits of technology

It achieves contactless power transmission in the washing machine drum, avoiding the risks of water and electric leakage, improving cleaning performance and mobility, and reducing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a washing machine of a non-contact power transmission structure, and relates to the technical field of washing machines. The washing machine comprises a washing machine body and a washing machine inner barrel, wherein the washing machine inner barrel is rotationally arranged in an inner cavity of the washing machine body; according to the utility model, the inner barrel of the washing machine rotates synchronously under the adsorption action of the transmission mechanism, the lower permanent magnet and the upper permanent magnet, so that the non-contact power transmission of the inner barrel of the washing machine is conveniently realized, the completeness of different spaces is guaranteed, and the structural hidden dangers such as water leakage and electric leakage in an independent space are avoided; each space is more convenient to clean and move, and the cost is saved; the inner cavity of the inner barrel of the washing machine can be separated through the arranged isolation fixing assembly, meanwhile, the upper fixing disc and the upper permanent magnet can be assembled on the bottom wall of the inner barrel of the washing machine and connected with the lower permanent magnet in an adsorption mode, and therefore rapid assembly of the upper permanent magnet is conveniently achieved, and separation of the upper permanent magnet and the lower permanent magnet can be achieved through reverse operation; the maintenance is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of washing machine technology, specifically a washing machine with a non-contact power transmission structure. Background Technology

[0002] Washing machines use a motor to drive the inner drum or pulsator to rotate, causing water and clothes to rub and knead, thus achieving the purpose of cleaning. The motor drives the inner drum to rotate via a belt, or a pulsator washing machine uses a pulsator at the bottom of the drum to rotate forward and backward, causing the clothes to rub gently in the water, working with detergent to remove dirt and clean.

[0003] However, existing washing machines still have some drawbacks:

[0004] Currently, the transmission of the motor's rotational power in the washing machine industry is achieved through a drive shaft. The motor's torsional force is transmitted to the impeller and agitator through coaxial bearings. This requires penetrating damage in different spaces, which creates the risk and probability of leakage in waterproof and sealing scenarios, and also leads to increased costs.

[0005] To address the aforementioned problems, the inventor proposes a washing machine with a contactless power transmission structure. Utility Model Content

[0006] In order to solve the above problems, the purpose of this utility model is to provide a washing machine with a contactless power transmission structure.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: a washing machine with a non-contact power transmission structure, including a washing machine body and a washing machine inner drum, wherein the washing machine inner drum is rotatably disposed in the inner cavity of the washing machine body, a transmission mechanism is provided in the inner cavity of the washing machine body and the washing machine inner drum, and an isolation and fixing component is provided in the inner cavity of the washing machine inner drum.

[0008] Preferably, the transmission mechanism includes an upper fixed plate and a lower fixed plate. The lower surface of the upper fixed plate is in movable contact with the bottom wall of the inner drum of the washing machine, and the upper surface of the lower fixed plate is in movable contact with the bottom outer wall of the inner drum of the washing machine. A plurality of upper permanent magnets are fixedly arranged in a ring array on the upper surface of the upper fixed plate, and a plurality of lower permanent magnets are fixedly arranged in a ring array on the lower surface of the lower fixed plate.

[0009] Preferably, the upper and lower fixing plates are made of plastic.

[0010] Preferably, the N pole of the upper permanent magnet is attracted to the S pole of the lower permanent magnet.

[0011] Preferably, the transmission mechanism further includes a motor, which is mounted on the bottom wall of the inner cavity of the washing machine. A rotating rod is fixedly provided at the drive output end of the motor. A rotating shaft is rotatably installed on the bottom wall of the inner cavity of the washing machine. One end of the rotating shaft is fixedly connected to the lower surface of the lower fixed plate. A bevel gear is fixedly provided at one end of the rotating rod and the other end of the rotating shaft. The two bevel gears are meshed together.

[0012] Preferably, the isolation fixing assembly includes an isolation plate, which is detachably installed on the bottom wall of the washing machine inner drum. The upper fixing plate is detachably installed on the lower surface of the isolation plate. A plurality of ear seats are fixedly arranged in a ring array on the upper surface of the isolation plate. Each of the ear seats has a mounting hole, and a screw is threadedly installed inside each of the mounting holes. A plurality of threaded holes are arranged in a ring array on the inner wall of the washing machine inner drum. One end of the screw is threadedly connected to the inner wall of the threaded hole.

[0013] Preferably, a sealing ring is fixedly provided on the outer ring of the isolation disc, and the outer wall of the sealing ring is in movable contact with the inner wall of the washing machine drum.

[0014] Preferably, a rubber plug is movably inserted into one end of each of the mounting holes.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, through the transmission mechanism, the adsorption effect of the lower permanent magnet and the upper permanent magnet causes the inner drum of the washing machine to rotate synchronously, thereby facilitating the contactless power transmission of the inner drum of the washing machine, ensuring the integrity of different spaces, ensuring that independent spaces do not generate structural hazards such as water leakage or electric leakage, making it easier to clean and move each space, and saving costs.

[0017] 2. In this utility model, the inner cavity of the washing machine drum can be separated by the isolation and fixing components. At the same time, the upper fixing plate and the upper permanent magnet can be assembled on the bottom wall of the washing machine drum and connected to the lower permanent magnet by adsorption. This facilitates the quick assembly of the upper permanent magnet. The upper permanent magnet and the lower permanent magnet can be separated by reversing the operation, which is convenient for maintenance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the overall structure of a washing machine with a contactless power transmission structure according to this utility model.

[0020] Figure 2 This is a schematic diagram of the connection structure between the isolation and fixing component of this utility model and the inner drum of the washing machine.

[0021] Figure 3 This is a cross-sectional structural diagram of the inner drum of the washing machine according to this utility model.

[0022] Figure 4 This is an exploded structural diagram of the transmission mechanism and isolation fixing component of this utility model.

[0023] Figure 5 This is another exploded structural diagram of the transmission mechanism and isolation fixing component of this utility model.

[0024] Figure 6 This is a schematic diagram of the separation structure of the rubber plug seat, screw, and mounting hole of this utility model.

[0025] In the diagram: 1. Washing machine body; 2. Washing machine inner drum; 3. Transmission mechanism; 31. Upper fixed plate; 32. Lower fixed plate; 33. Upper permanent magnet; 34. Lower permanent magnet; 35. Motor; 36. Rotating rod; 37. Rotating shaft; 38. Bevel gear; 4. Isolation and fixing assembly; 41. Isolation plate; 42. Sealing ring; 43. Ear seat; 44. Mounting hole; 45. Screw; 46. Threaded hole; 47. Rubber plug seat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Figure 1-6 As shown, this utility model provides a washing machine with a contactless power transmission structure, including a washing machine body 1 and a washing machine inner drum 2. The washing machine inner drum 2 is rotatably disposed in the inner cavity of the washing machine body 1. A transmission mechanism 3 is provided in the inner cavity of the washing machine body 1 and the washing machine inner drum 2. By setting the transmission mechanism 3, the transmission mechanism 3 adopts the magnetic principle to realize contactless power transmission, ensuring the integrity of different spaces, ensuring that independent spaces do not generate structural hazards such as water leakage and electric leakage, making it more convenient to clean and move each space, and saving costs. An isolation fixing component 4 is provided in the inner cavity of the washing machine inner drum 2. By setting the isolation fixing component 4, the operator can quickly assemble the transmission mechanism 3.

[0028] The transmission mechanism 3 includes an upper fixed plate 31, a lower fixed plate 32, and a motor 35. The upper fixed plate 31 and the lower fixed plate 32 are made of plastic. The lower surface of the upper fixed plate 31 is in contact with the bottom wall of the inner drum 2 of the washing machine, and the upper surface of the lower fixed plate 32 is in contact with the bottom outer wall of the inner drum 2 of the washing machine. A plurality of upper permanent magnets 33 are fixedly arranged in a ring array on the upper surface of the upper fixed plate 31, and a plurality of lower permanent magnets 34 are fixedly arranged in a ring array on the lower surface of the lower fixed plate 32. The N pole of the upper permanent magnet 33 and the S pole of the lower permanent magnet 34 are attracted to each other. By setting the upper permanent magnets 33 on the upper fixed plate 31 and the lower permanent magnets 34 on the lower fixed plate 32, when the lower permanent magnets 34 are attracted to the lower part of the upper permanent magnets 33, the bottom of the inner drum 2 of the washing machine can be clamped by the force of the upper fixed plate 31 and the lower fixed plate 32. When the lower fixed plate 32 rotates, the inner drum 2 of the washing machine can rotate synchronously.

[0029] The motor 35 is mounted on the bottom wall of the inner cavity of the washing machine body 1. A rotating rod 36 is fixedly installed at the drive output end of the motor 35. A rotating shaft 37 is rotatably installed on the bottom wall of the inner cavity of the washing machine body 1. One end of the rotating shaft 37 is fixedly connected to the lower surface of the lower fixed plate 32. A bevel gear 38 is fixedly installed at one end of the rotating rod 36 and the other end of the rotating shaft 37. The two bevel gears 38 are meshed together. When the motor 35 is turned on, the drive shaft of the motor 35 can make the rotating rod 36 rotate. The rotating rod 36 can make the rotating shaft 37 rotate through the two bevel gears 38. The rotating shaft 37 can make the lower fixed plate 32 rotate.

[0030] The isolation and fixing assembly 4 includes an isolation plate 41, which is detachably installed on the bottom wall of the inner drum 2 of the washing machine. An upper fixing plate 31 is detachably installed on the lower surface of the isolation plate 41. A sealing ring 42 is fixedly provided on the outer ring of the isolation plate 41. The outer wall of the sealing ring 42 is in movable contact with the inner wall of the inner drum 2 of the washing machine. By providing the sealing ring 42, the sealing performance between the isolation plate 41 and the inner cavity of the inner drum 2 of the washing machine can be improved, preventing water leakage downwards. The isolation plate 41 isolates the upper fixing plate 31. The upper part of the isolation plate 41 is the washing space. A plurality of ear seats 43 arranged in a ring array are fixedly provided on the upper surface of the isolation plate 41. Mounting holes 44 are provided on the upper part of the washing machine drum 2. Screws 45 are threadedly installed inside the mounting holes 44. The inner wall of the inner drum 2 of the washing machine drum 2 is provided with a number of threaded holes 46 arranged in a ring. One end of the screw 45 is threadedly connected to the inner wall of the threaded hole 46. By setting the mounting holes 44, screws 45 and threaded holes 46, when the screw 45 is threaded into the mounting holes 44 and threaded holes 46, the isolation plate 41 can be fixed to the bottom wall of the inner drum 2 of the washing machine drum 2 through the lug 43. A rubber plug 47 is movably inserted into one end of each mounting hole 44. By setting the rubber plug 47, the rubber plug 47 can seal the end of the mounting hole 44 and protect the screw 45.

[0031] Working principle: When in use, the operator first places the isolation plate 41 on the bottom wall of the inner drum 2 of the washing machine. At this time, the lower surface of the upper fixing plate 31 is in contact with the bottom wall of the inner drum 2 of the washing machine, and the upper permanent magnet 33 and the lower permanent magnet 34 attract each other. Then, the screws 45 are screwed into the corresponding mounting holes 44 and threaded holes 46. Then, the rubber plug seat 47 is inserted into the end of the mounting hole 44. At this time, the upper fixing plate 31 and the upper permanent magnet 33 are fixed to the bottom wall of the inner drum 2 of the washing machine, thus realizing the quick assembly of the upper permanent magnet 33. The upper permanent magnet 33 and the lower permanent magnet 34 can be separated by reversing the operation, which is convenient for maintenance.

[0032] The operator turns on the motor 35, and the drive shaft of the motor 35 causes the rotating rod 36 to rotate. The rotating rod 36, through two bevel gears 38, causes the rotating shaft 37 to rotate. The rotating shaft 37 causes the lower fixed plate 32 to rotate. The rotation of the lower fixed plate 32, through the attraction between the lower permanent magnet 34 and the upper permanent magnet 33, causes the inner drum 2 of the washing machine to rotate synchronously. This conveniently realizes the contactless power transmission of the inner drum 2 of the washing machine, ensuring the integrity of different spaces, preventing structural hazards such as water leakage and electrical leakage in independent spaces, making it easier to clean and move each space, and saving costs.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A washing machine with a non-contact power transmission structure, comprising a washing machine body (1) and a washing machine inner drum (2), characterized in that: The inner drum (2) of the washing machine is rotatably disposed in the inner cavity of the washing machine body (1). The inner cavity of the washing machine body (1) and the inner drum (2) is provided with a transmission mechanism (3). The inner cavity of the inner drum (2) is provided with an isolation and fixing component (4).

2. The washing machine with a contactless power transmission structure as described in claim 1, characterized in that, The transmission mechanism (3) includes an upper fixed plate (31) and a lower fixed plate (32). The lower surface of the upper fixed plate (31) is in contact with the bottom wall of the inner drum (2) of the washing machine. The upper surface of the lower fixed plate (32) is in contact with the bottom outer wall of the inner drum (2) of the washing machine. The upper surface of the upper fixed plate (31) is fixedly provided with a plurality of upper permanent magnets (33) arranged in a ring array. The lower surface of the lower fixed plate (32) is fixedly provided with a plurality of lower permanent magnets (34) arranged in a ring array.

3. The washing machine with a contactless power transmission structure as described in claim 2, characterized in that, The upper fixing plate (31) and the lower fixing plate (32) are made of plastic.

4. A washing machine with a contactless power transmission structure as described in claim 2, characterized in that, The N pole of the upper permanent magnet (33) is attracted to the S pole of the lower permanent magnet (34).

5. A washing machine with a contactless power transmission structure as described in claim 2, characterized in that, The transmission mechanism (3) also includes a motor (35), which is mounted on the bottom wall of the inner cavity of the washing machine body (1). A rotating rod (36) is fixedly provided at the drive output end of the motor (35). A rotating shaft (37) is rotatably installed on the bottom wall of the inner cavity of the washing machine body (1). One end of the rotating shaft (37) is fixedly connected to the lower surface of the lower fixed plate (32). A bevel gear (38) is fixedly provided at one end of the rotating rod (36) and the other end of the rotating shaft (37). The two bevel gears (38) are meshed together.

6. A washing machine with a contactless power transmission structure as described in claim 2, characterized in that, The isolation fixing component (4) includes an isolation plate (41), which is detachably installed on the bottom wall of the inner drum (2) of the washing machine. The upper fixing plate (31) is detachably installed on the lower surface of the isolation plate (41). A plurality of ear seats (43) arranged in a ring array are fixedly provided on the upper surface of the isolation plate (41). Each of the ear seats (43) is provided with a mounting hole (44). A screw (45) is threadedly installed inside each of the mounting holes (44). A plurality of threaded holes (46) arranged in a ring array are provided on the inner wall of the inner drum (2) of the washing machine. One end of the screw (45) is threadedly connected to the inner wall of the threaded hole (46).

7. A washing machine with a contactless power transmission structure as described in claim 6, characterized in that, A sealing ring (42) is fixedly provided on the outer ring of the isolation plate (41), and the outer wall of the sealing ring (42) is in contact with the inner wall of the washing machine inner drum (2).

8. A washing machine with a contactless power transmission structure as described in claim 6, characterized in that, A rubber plug seat (47) is movably inserted into one end of each of the aforementioned mounting holes (44).